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  1. #31

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    Quote Originally Posted by firebird_1995 View Post
    Have you seen the "sloppy trans brake" mod? Sounds hideous but basically tells the shift solenoids to be in 3rd gear so you can build boost on the footbrake, then when you release the button it releases the 3rd gear command and off you go. I'm going to give it a shot on my junkyard 80
    My friend had that mod in his 4L80. We raced the True Street event at Norwalk last year. He made it one run and the brand new tranny let go. Not saying it was the culprit, but the tranny shop builds a lot of solid stuff.
    '94 coupe, 10.15 at 133.65 414" LT1, 4500 stall, n/a, pump gas, mufflers, street trim
    '15 Z/28, Red Hot, AC, Autocross beast

  2. #32
    The FABRICATOR!


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    Name
    Chris
    Vehicle
    1985 Monte Carlo SS
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    southern illinois
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    Default

    Quote Originally Posted by joelster View Post
    My friend had that mod in his 4L80. We raced the True Street event at Norwalk last year. He made it one run and the brand new tranny let go. Not saying it was the culprit, but the tranny shop builds a lot of solid stuff.
    I've heard it both ways. There's a thread on ls1tech of a guy that made numerous passes on the mod, and I've read others like your experience where it's roasted the trans. I'm sure there are many variables, converter, trans temp, how high you're building and how long. My trans doesn't owe me anything so I'd figured I'd let her eat, or roast.
    Chris
    1985 Monte Carlo SS
    Mods: 9:1 383 LT1, Ported Trick Flow heads, D1SC Procharger, 4L80E, 3.50 9"
    Check out the M122 MCSS build thread here!

  3. #33
    InActive Member


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    Congrats Matt!
    96 TA WS6 - 383ci + T76 = no traction
    www.lt1boost.net ... your home for LTx turbo kits

  4. #34
    Xtreme Member


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    Nov 2008
    Name
    Chris
    Vehicle
    1994 Trans Am
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    PA, USA
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    I love that this setup doesn't rev high but still makes great power. Well done and nice combo! A true street setup for sure.

    1994 Trans Am Under the knife - but it's alive!!! (5.3 LM7/CPT 60e/QP 9") BUILD THREAD
    2009 G8 GXP M6, full exhaust, catch can, cai, stereo
    1975 Olds 98 455 burnout machine/panty dropper | 1985 C10 new project

  5. #35

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    Quote Originally Posted by RealQuick View Post
    Congrats Matt!
    Thanks Jon, gotta update your site

    Quote Originally Posted by harner View Post
    I love that this setup doesn't rev high but still makes great power. Well done and nice combo! A true street setup for sure.
    Thanks! The small turbo and small cam do limit me from playing the HP battles of larger stuff but, its a blast to drive round the street.
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

  6. #36
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    Matt, you gonna throw meth on this year? Should add quite a bit of power after a retune.

  7. #37

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    Negative, really not needed when your AFR is pig rich at WOT.

    We left it so rich to protect the trans
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

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